Shoe upper



FIG. 1 is a perspective view;

FIG. 2 is a top plan view;

FIG. 3 is a left side elevational view with the right side being identical; and,

FIG. 4 is a rear elevational view.

The broken line showing the sole in the figures is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 